Sorry, no clue on the rims.
But stems are measured center to center, in millimeters.
But stems are measured center to center, in millimeters.
I always assumed this too, but in a recent flurry of upgrades I noticed that the new ones I bought are measured from the centre of the headset to the 'start' of the handlebars.FISHLEG said:Stems are measured center to center, in millimeters.